\begin{tikzpicture}
    \tkzDefPoints{0/0/A, 2/0.5/B, 0/-1.0/C, 2/-0.5/D}

    \tkzDrawLines[add=0.3 and 0.3](A,B  C,D)
    \tkzLabelPoints[above](A, B, C, D)
\end{tikzpicture}

